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目的分析龙岩市2010~2013年流感监测结果,探讨流行动态变化规律。方法建立流感监测点,定期采集流感样标本,用MDCK细胞分离病毒,并通过血凝抑制试验鉴定分离毒株。结果 2010~2013年合计检测4 627份标本,分离到流感病毒407株,阳性率为8.80%。2010与2012年度为季节性甲3型和乙型为主,2011年以乙型流行为主,2013年为甲型H1N1,4年均未分离到季节性甲1型。结论 2010~2013年龙岩市流感的流行情况较为平稳,不同型别的毒株混合流行,活动高峰除2010年有一个9~11月高峰外,其余主要集中在每年的1~4月份。
Objective To analyze the results of influenza surveillance from 2010 to 2013 in Longyan City and discuss the epidemiological changes. Methods Influenza surveillance sites were established. Influenza samples were collected periodically, and viruses were isolated by MDCK cells. The strains were identified by hemagglutination inhibition test. Results A total of 4 627 specimens were tested from 2010 to 2013, and 407 influenza viruses were isolated, the positive rate was 8.80%. In 2010 and 2012, seasonal A type 3 and type B were the major ones. In 2011, they were mainly type B epidemic. In 2013, they were type A H1N1 and the average annual dose of type A was 1.4. Conclusion The prevalence of influenza in Longyan City from 2010 to 2013 was relatively stable. The strains of different genotypes were mixed and epidemic. The highest activity peak was from September to November in 2010 except the peak from September to November. The rest mainly concentrated in January to April each year.